Bortezomib is a modified dipeptidyl boronic acid. The material is provided as a mannitol boronic ester which, in reconstituted form, consists of the mannitol ester in equilibrium with its hydrolysis product, the monomeric boronic acid. The drug substance
The tops of Jumbo bags : open mouth or skirt(duffle)or filling spout The bottom of the Jumbo bags: flat bottom or discharge spout The loops of the Jumbo bags :cross corner or side seamed